德迅云安全43.241.19.1-255
勒索病毒是一种电脑病毒，主要攻击Windows电脑，通过漏洞发起攻击，或以邮件、程序木马，网页挂马等形式进行传播。
这种病毒利用各种加密算法对文件进行加密，被感染者无法解密并打开文件，必须从攻击者那里交一定金额的钱，才能获得打开文件的方法(给了钱也不一定就能获取到打开方法哦)。
应对勒索病毒最有效的办法就是做到提前预防。
1、针对漏洞，打补丁修复漏洞或使用具备“漏洞攻击拦截”功能的安全软件，确保漏洞不被利用，勒索病毒感染量将会下降85%。
2、针对邮件，不要轻易点击陌生邮件，尤其是打开或者运行其中的附件，如果必须要查看，可先对其进行病毒查杀。
3、针对广告推广，做到不点击不明链接、广告，并对弹窗广告进行屏蔽、阻拦。
4、针对U盘等外设，可使用具备“U盘保护”功能的安全软件加以防御，或者直接禁用外设。
各种病毒、勒索软件肆虐，文档安全保护的意识尤为重要，每个人都应该提前进行文件备份，无论是桌面电脑还是服务器，对文件的备份刻不容缓，桌面文件，可以选择适合企业使用的企业云盘产品，服务器文件采用服务器备份软件。
数据备份系统应该被视作IT系统的基础设施，数据备份应该每天都要做。
说到这里，我想起了墨菲定律。
墨菲定律：如果事情有变坏的可能性，不管这种可能性有多低，它总会发生。
so、一定要记得备份哦~

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